mirror of
https://github.com/status-im/status-go.git
synced 2025-01-27 15:05:56 +00:00
874a3e8151
* add verifier and test using simulated backend * add ContractCaller * commit simulated backend after deploy and after smart contract writes * use bind.NewKeyedTransactor for all transactions in tests * rename RegistryVerifier to Verifier * initialize contract verifier if MailServerRegistryAddress config is set * use contractAddress.Hash() * refactoring * use fmt.Sprintf to format contract address in logs * fix test and lint warnings * update Gopkg.lock * update Gopkg.lock once more
45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
package registry
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"github.com/ethereum/go-ethereum/accounts/abi/bind"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/log"
|
|
"github.com/ethereum/go-ethereum/p2p/discover"
|
|
)
|
|
|
|
var logger = log.New("package", "mailserver/registry")
|
|
|
|
// Verifier verifies nodes based on a smart contract.
|
|
type Verifier struct {
|
|
rc *RegistryCaller
|
|
}
|
|
|
|
// NewVerifier returns a new Verifier instance.
|
|
func NewVerifier(contractCaller bind.ContractCaller, contractAddress common.Address) (*Verifier, error) {
|
|
logger.Debug("initializing mailserver registry verifier", "address", fmt.Sprintf("0x%x", contractAddress))
|
|
rc, err := NewRegistryCaller(contractAddress, contractCaller)
|
|
if err != nil {
|
|
logger.Debug("error initializing mailserver registry verifier", "address", fmt.Sprintf("0x%x", contractAddress))
|
|
return nil, err
|
|
}
|
|
|
|
return &Verifier{
|
|
rc: rc,
|
|
}, nil
|
|
}
|
|
|
|
// VerifyNode checks if a given node is trusted using a smart contract.
|
|
func (v *Verifier) VerifyNode(ctx context.Context, nodeID discover.NodeID) bool {
|
|
res, err := v.rc.Exists(&bind.CallOpts{Context: ctx}, nodeID.Bytes())
|
|
logger.Debug("verifying node", "id", nodeID, "verified", res)
|
|
if err != nil {
|
|
logger.Error("error verifying node", "id", nodeID, "error", err)
|
|
return false
|
|
}
|
|
|
|
return res
|
|
}
|